Important CentOS haproxy Security Update


haproxy-1.5.4-2.el6_7.1.i686.rpm, haproxy-1.5.4-2.el6_7.1.src.rpm, haproxy-1.5.4-2.el6_7.1.x86_64.rpm, haproxy-1.5.4-4.el7_1.1.src.rpm, haproxy-1.5.4-4.el7_1.1.x86_64.rpm,,
2018-01-18 11:10
2017-07-27 19:09
2017-04-01 19:09
2017-01-05 20:13


An updated haproxy package that fixes one security issue is now available
for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

HAProxy provides high availability, load balancing, and proxying for TCP
and HTTP-based applications.

An implementation error related to the memory management of request and
responses was found within HAProxy's buffer_slow_realign() function.
An unauthenticated remote attacker could possibly use this flaw to leak
certain memory buffer contents from a past request or session.

All haproxy users are advised to upgrade to this updated package, which
contains a backported patch to correct this issue.
Please see

Am I vulnerable?

The constraints below list the versions that this vulnerability is patched in, and versions that are unaffected. If a patch is ready but unrealeased, then it is pending.

Or, you can just let us figure it out for you! Appcanary continously monitor your installed packages, and tell you if any of them are vulnerable.

Sign up for monitoring

Affected package information

Release Package Patched in
6 haproxy haproxy-1.5.4-2.el6_7.1.i686.rpm
haproxy haproxy-1.5.4-2.el6_7.1.src.rpm
haproxy haproxy-1.5.4-2.el6_7.1.x86_64.rpm
7 haproxy haproxy-1.5.4-4.el7_1.1.src.rpm
haproxy haproxy-1.5.4-4.el7_1.1.x86_64.rpm